For example, touching the back of the device would let one open a folder from a list of folders, showing a preview of the content residing within the tapped folder; or, a touch on the back would make additional info pop up, such as a note, photo, and more, without having to navigate away from what's shown on the display on the front. Another nice example described in the patent includes moving two overlapping objects, one with a touch on the face of the device and one with a touch on the back.
Furthermore, other functions, such as controlling a video or drawing a pattern to unlock the device, are also shown, indicating Samsung has put quite a lot of thought into how transparent displays with backside controls would make the experience a more convenient one. There's no telling when we'll see smartphones with transparent displays crop up in the market, but whenever that is, Samsung will likely be a step ahead of other display makers, something that isn't exactly new for the Korean manufacturer. Hit the source link for more details on the patent.
